Comparative molecular analysis of colorectal cancer in Saudi Arabia: distinct genetic alterations and clinical features - Takeaways - MDSpire

Comparative molecular analysis of colorectal cancer in Saudi Arabia: distinct genetic alterations and clinical features

  • By

  • Maha-Hamadien Abdulla

  • Jumanah Yousef Alshenaifi

  • Mansoor-Ali Vaali-Mohammed

  • Ahmad Zubaidi

  • Khayal Al Khayal

  • Noura S. Alhassan

  • Khalid Abdulrahman Al-Saleh

  • Omar Al Obeed

  • Scott Kopetz

  • May 1, 2026

  • 0 min

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  • 1

    Colorectal cancer (CRC) is the most common cancer in Saudi males and the second most common in females, with 73% diagnosed at an advanced stage.

  • 2

    Whole Exome Sequencing revealed lower KRAS and APC mutation rates in Saudi CRC patients compared to cohorts from MD Anderson and The Cancer Genome Atlas.

  • 3

    TP53 mutations were more prevalent in Saudi CRC patients, occurring in 50% of cases, contrasting with lower rates in other populations.

  • 4

    Saudi CRC patients typically present with sigmoid malignancy at a younger age, averaging 58 years, compared to older averages in other cohorts.

  • 5

    The study emphasizes the need for population-specific data to improve molecular diagnostics and treatment strategies for CRC in Saudi Arabia.

Original Source(s)

Comparative molecular analysis of colorectal cancer in Saudi Arabia: distinct genetic alterations and clinical features

  • by Maha-Hamadien Abdulla, Jumanah Yousef Alshenaifi, Mansoor-Ali Vaali-Mohammed, Ahmad Zubaidi, Khayal Al Khayal, Noura S. Alhassan, Khalid Abdulrahman Al-Saleh, Omar Al Obeed, Scott Kopetz

  • May 1, 2026

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